Finding the Fourth Proportional to 3,638,408.95, 5,456,432.49 and 1,208,909.75
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Solution
The fourth proportional to 3,638,408.95, 5,456,432.49 and 1,208,909.75 is: 1,812,972.23
Step by Step Solution
- Step 1: Write the proportion equation
3,638,408.95 : 5,456,432.49 = 1,208,909.75 : x - Step 2: Convert to fraction form
3,638,408.95/5,456,432.49 = 1,208,909.75/x - Step 3: Cross multiply
3,638,408.95x = 5,456,432.49 × 1,208,909.75 - Step 4: Simplify right side
3,638,408.95x = 6,596,334,405,562.20 - Step 5: Solve for x
x = 6,596,334,405,562.20/3,638,408.95 - Step 6: Final answer
x = 1,812,972.23
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.